Examlex
Describe and state the historical significance of the following:
-triangular trade
Transmutation Reaction
A nuclear reaction in which the nucleus of an atom changes into a nucleus with a different number of protons, thereby changing one element into another.
Alpha Emitter
A type of radioactive decay in which an unstable atom emits an alpha particle consisting of two protons and two neutrons, thereby reducing its atomic number by 2 and mass number by 4.
Nitrogen
A colorless, odorless, tasteless gas that constitutes approximately 78% of the Earth's atmosphere and is a vital part of living organisms' compounds.
Helium
Helium is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas series in the periodic table, with the symbol He and atomic number 2.
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